Improved apparatus for carbureting air



H. L. MCAVOY. Apparatus for Carburetin'g Air. No. 50,076. v PatentedSept. 19, 1865! N. PEYERa Pllala-Lflhcgrapher. Washinglou. I!v c,

UNITED STATES PATENT OFFICEO HUGH L. MGAVOY, OF BALTIMORE, MARYLAND,ASSIGNOR TO HIMSELF AND E. S. HUTGHINSON, OF SAME PLACE.

IMPROVED APPARATUS FOR CARBURETING AIR. I

Specification forming part of Letters Patent No. 50,076, dated September19, 1865.

To all whom it may concern:

Be it known that I, HUGH L. MoAvoY, of the city and county of Baltimore,and State of Maryland, have made new and useful Im provements inGas-Generators and I do hereby declare the following to be a full,clear, and exact description of the nature, construction, and operationof the same, sufficient to enable one skilled in the art to constructand use the same,

reference being bad to the accompanying drawings, which are made part ofthis specification,

and in which- Figure l is a central vertical section. Fig. 2 is acentral vertical section in a plane at right angles to Fig. land on theline yy, Fig.3. Fig.3 is a horizontal section on the line 00 at, Fig. 1.

The sameletters refer to corresponding parts in the difl'erent figures.

M yimprovement consists, first, in the method of connecting thedriving-shaft with the shaft of the air-forcing wheel by means ofgearing, whose shaft enters the sideof the chamber above thefluid-level; secondly, supplying the air-forcin g wheel with air througha pipe communicating with the chamber in which the regulator worksthirdly, making the regulator with an exterior of a cylindrical form andthe interior as a frustum of a cone, with an airspace between the saidbounding-surfaces, so that as it descends in the fluid it shall have anincreasing sectional area of displacement, and this for the purpose ofavoiding unsteady action, which renders the light flickering; fourthly,the automatic valve to regulate the admission of air into the chamber inwhich the regulator operates; flfthly, the valve suspended from theregulator and regulating the influx ofgasintoitbyitsverticalmovements;sixthly, the reservoir situated above the gas-generating chamber, thecommunication between them being regulated by the float in the lowerchamher.

This machine has an upper chamber, which contains the fluid and the airfor the supply of the lower chamber, in which the wheel operates whichforces the air through the fluid. The carbureted air then passes fromthe upper part of the lower chamber by a pipe, which discharges it underan inverted vessel, which, by its gravity, being partially immersed inthe fluid of the upper chamber, exerts a certain pressure upon thecontained carbureted air and forces it out for the purposesofillumination, 860.

a a are the outer walls of the apparatus, and the space thus inclos'edis divided by a diaphragm, g, so as to constitute an upper chamber, Y,and a lower one, D. These communicate in a manner to be hereinafterdescribed, and are represented as rectangular, which, of course, is notnecessary to their functual character.

The upper chamber has an innerjacket inclosing a cylindrical space, andwhich is marked a A, and both this space and the chamber Y are suppliedwith hydrocarbon fluid, the former by means of the pipe T and the latterby means of the pipe V; but the said spaces A and Y have no directcommunication with each other.

The roof I) of the chamber A is provided with an automatic valve, whichopens to admit air into said chamber as may be required, the air beingexhausted therefrom by means to be presently described.

In the chamber A is an inverted vessel, with a cylindrical exterior, O,and an inner frustum-shaped wall, B, inclosing between them anair-space, which modifies the specific gravity by increasing thedisplacement of the vessel which I term the regulator, and, further, bythe conformation of its sides, has an increasing sectional area ofdisplacement as it sinks in the fluid. The space inclosed by B receivescarbureted air by means of the valved pipe H from the lower chamber, D,and discharges its said contained air by means of the pipe S, which hasits reception-orifice opening upward into the interior of the invertedvessel, and, passing downward and upward and through the interveningplates and walls, is

conducted to the place where the gas is stored or used, generally thelatter, for the apparatus is specially intended for carburetin g air forimmediate use and in the quantities required.

The lower chamber, D, is supplied with fluid through the pipe Z, and haswithin it an open-ended cylindrical wheel, whose interior has spiralwings E, and which, as it revolves, draws in air through the pipe 1%from the upper part of chamber A, discharging it at 111. into thechamber D over the surface of the fluid, from whence it passes valve 1and through pipe H to the inside of the inverted regulator, aspreviously mentioned. The float paratus on occasion.

Z regulates the passage of fluid from the upper chamber, Y, to thelowerchamber, D, by raising and closing the orifice in the pipe Z when thechamber D is full enough.

X is a discharge-pipe for emptying the ap- The lower chamber, D, may besupplied with fluid through pipe W.

1 do not here enter into the details as to the particular form of theair-forcing wheel, as it forms the subject of a separate patent; butitis necessary to mention that it is attached to the shaft F and revolvedby means of the gearing G K M N and the weighted rope P. The gear-wheelN is attached to the shaft 0, the wheel G to the shaft F, and thesewheels are connected by means of the wheels M K, which are on the shaftL, which passes through the side a of the chamber D at a point above thelevel of the fluid contained in said chamber.

The valve I, which is at the lower end of the tube I, regulates theorifice connecting the lower chamber with the regulator, so that whenthe latter is sufficiently full the cord f, drawing upon the rod J,closes the valve and stops the pp y It may now be proper to trace thecourse of the air, promising that the revolution of the chamber D, and,admitted by valve I to the regulator, is by the gravity of the latterdriven out by the pipe S to the place where it is utilized.

The means of supply of the fluid to the various chambers have alreadybeen described, the lower chamber receivingits supply through the pipeZ, guarded by the valved float Z, and the chambers Y and A by means oftheir connections with a suitable reservoir. (Not shown in the drawings,but constructed and attached in any suitable manner.)

No water is used about the apparatus 5 but the regulatorfloats inhydrocarbon fluid,above which is the air which feeds the forcing-wheel.The glass pipe V indicates the height of fluid in the chamber A, and thecircular flange above J prevents the valve Ifrom dropping so far as tointerfere with the wheel E.

Having described my invention, what I claim therein as new, and desireto secure by Letters Patent, is-

1. The described gearing and shafting by which the motor-shaft O isconnected with the forcing-wheel shaft F through a point in the side ofthe chamber above the fluid-level.

2. The air-pipe R, which supplies the air to the wheel from the chamberin which the regulator operates.

3. The described form of regulator, inclosing an air-space between acylinder and conical frustum', and whose sectional area of displacementis increased as it sinks in the fluid. 4. The automatic valve d, incombination with the chamber A, pipe 0, and supply-pipe R. 5. The valveI, suspendedfrom the regulator and controlling the lower orifice of thepipe H, which supplies carbureted air to the regulator.

6. The reservoir Y, situated above the gasgenerating chamber andcommunicating there with by the pipe Z, guarded by the valved float inthe chamber D.

7. The combination of the upper reservoir,Y, chamber A, and regulator BO with the lower chamber, D, and air-forcing wheel E, communicating witheach other by the passages for fluid, air, and carbureted air,substantially as described. 1

HUGH L. MGAVOY.

Witnesses:

PHILIP T. TILYARD, W. H. HAYWARD.

